University of Amsterdam: Conversations on quantum gravity

‘Conversations on quantum gravity’ is physicist Jay Armas’ new book on the ongoing search for a theory of everything. In the book, Armas talks to 37 researchers – inlcuding five Nobel laureates and two Fields medalists – who share the current debates, the impact of their own discoveries and those of others, and their motivations to pursue the biggest questions about the world around us.

The holy grail of modern theoretical physics is to find a theory of everything. Such a theory would combine all the forces of nature, including gravity, in a way consistent with the lessons we learned from quantum mechanics. ‘Conversations on quantum gravity’ addresses the question: how far are we from such a discovery?

This book presents an unconventional ten-year ‘long-exposure photograph’ of the evolving research field of quantum gravity. In this field, there is potential for breakthroughs in interlinking diverse approaches, many of which are covered in this book. Thus the book provides an informative read to complement more specialised textbooks. It is suitable for students, researchers and anyone interested in learning what practitioners of quantum gravity consider as the critical obstacles to understanding quantum spacetime. – Astrid Eichhorn, CP3-Origins, University of Southern Denmark

Insights and opinions
Over the last few decades, multiple roads to finding a quantum theory of gravity have been proposed, but no obvious unifying description of nature has emerged. What is to be made of this situation? The book probes the state of the art in this daunting quest of theoretical physics by collecting critical interviews with nearly forty leading theorists in this field.

These broad-ranging conversations give important insights and candid opinions on the various approaches to quantum gravity, including string theory, loop quantum gravity, causal set theory and asymptotic safety. The unique, readable overview provides a gateway into cutting edge research for anyone who wishes to engage with the open problem of quantum gravity.